Brake-dividing locking safety device for breaker
A technology of safety devices and circuit breakers, which is applied to circuits, protective switch operation/release mechanisms, electrical components, etc., can solve problems such as difficult to ensure the safety of power supply, and achieve the effect of ensuring safety
Active Publication Date: 2008-10-08
CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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Problems solved by technology
Practice has proved that it is difficult to ensure the safety of power supply by using a single lock body mechanism, a single key and a single person operation method. For occasions that require two people to control the closing mechanism of the circuit breaker, such as some important power generation , the above structure obviously cannot satisfy
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[0019] please see image 3 , the L-shaped mounting bracket 1 with preferred but not absolutely limited shape is provided, and at least one mounting hole 11 is provided at the bottom of the mounting bracket 1, and the number is not specifically limited, and the screw 111 ( Figure 7 with Figure 8 shown) to fix the mounting bracket 1 on the circuit breaker. The locking mechanism 2 is installed on the top of the mounting bracket 1, the proposed locking mechanism 2 of the present invention has included first and second lock bodies 21,22, and the first and second lock bodies 21,22 are all used daily and can be used from A lock body widely available in the market. The second lock body 22 and the first lock body 21 maintain a corresponding relationship up and down, that is, the second lock body 22 corresponds to the bottom of the first lock body 21, and the first dead bolt 211 is installed on the lock cylinder of the first lock body 21. The first lock tongue 211 is essentially ac...
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The present invention provides a breaking lock safety device for circuit breaker, and pertains to the technical domain of circuit breakers. The device comprises a mounting bracket to mount the circuit breaker and a locking mechanism on the mounting bracket; the device is characterized in: the locking mechanism comprises a first lock body and a second lock body, and a connecting rod; the first and second lock bodies are mounted on the mounting bracket, wherein, the second lock body is below the first lock body; the top end of the connecting rod is connected to a first bolt of the first lock body, and the bottom end of the connecting rod is connected to a second bolt of the second lock body. The device has the following advantages: since a locking mechanism composed of a first lock body and a second lock body is used, and the connecting rod connects the first and second bolts of the first and second lock bodies, the breaking lock of the closing mechanism of the circuit breaker can be released only when two persons open the lock with the keys on the first and second lock bodies at the same time; therefore, the device can ensure power supply safety.
Description
technical field [0001] The invention belongs to the technical field of circuit breakers, and in particular relates to an opening and locking safety device of a circuit breaker. Background technique [0002] The structure of the circuit breaker opening locking safety device in the prior art consists of figure 1 As shown, it includes a mounting bracket 1 for mounting on a circuit breaker and a locking mechanism 2 configured on the mounting bracket 1. When the lock tongue of the locking mechanism 2 is rotated to the bottom by a key, it is rotated to the position corresponding to that shown in Fig. When the push rod 31 of the closing mechanism 3 of the circuit breaker shown in , the lock bolt blocks the push rod 31 of the closing mechanism 3 of the circuit breaker, so that the push rod 31 cannot be under the action of the tension spring 32 of the closing mechanism 3 Return to the original position, the closing mechanism 3 of the circuit breaker cannot be closed; otherwise, if ...
Claims
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IPC IPC(8): H01H71/50H01H9/28
Inventor 俞晓峰毛振风应益飞
Owner CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)